How to get the system messages of my wiki up-to-date?
Fragment of a discussion from Support/LiquidThreads
You need to run the script manually or setup a CRON job or equivalent for it to have any effect.
There has been plans to create LUv2 that "just works" out of the box but nothing concrete yet.
One things we have regressed is that we used to do localisation backports to stable MediaWiki releases before each release, but we have not done it recently. Some better tooling to automate this would be helpful.